Expansion of Product_{n>=1} (1 - 2^(n-1)*x^n) * (1 + 2^(n-1)*x^n)^2.

Terms

a(0) =1a(1) =1a(2) =1a(3) =5a(4) =6a(5) =22a(6) =40a(7) =108a(8) =192a(9) =536a(10) =1072a(11) =2528a(12) =5344a(13) =12288a(14) =26624a(15) =61312a(16) =129024a(17) =286720a(18) =646656a(19) =1389568a(20) =3028992a(21) =6717440a(22) =14708736a(23) =31604736a(24) =69763072a(25) =150110208a(26) =329809920a(27) =714473472a(28) =1546649600a(29) =3324772352